Chemistry, 12.12.2019 21:31 haimar8710
Aresearcher studying the nutritional value of a new candy places a 5.70 g 5.70 g sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. the observed temperature increase is 2.14 ∘ c. 2.14 ∘c. if the heat capacity of the calorimeter is 30.30 kj ⋅ k − 1 , 30.30 kj⋅k−1, how many nutritional calories are there per gram of the candy?
Answers: 1
Chemistry, 22.06.2019 17:30
Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?
Answers: 2
Chemistry, 23.06.2019 02:50
Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved
Answers: 3
Chemistry, 23.06.2019 07:30
Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal
Answers: 1
Chemistry, 23.06.2019 08:00
Which term means two or more atoms that share electrons in a chemical bond? a. hydrogen bond b. moleculec. ionic bondd. element amd you
Answers: 3
Aresearcher studying the nutritional value of a new candy places a 5.70 g 5.70 g sample of the candy...
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